(19)
(11) EP 1 283 394 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.06.2006 Bulletin 2006/26

(43) Date of publication A2:
12.02.2003 Bulletin 2003/07

(21) Application number: 02017648.3

(22) Date of filing: 06.08.2002
(51) International Patent Classification (IPC): 
F23Q 7/00(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 10.08.2001 JP 2001243191

(71) Applicant: NGK Spark Plug Co., Ltd.
Nagoya-shi, Aichi 467-8525 (JP)

(72) Inventors:
  • Taniguchi, Masato, NGK Spark Plug Co., Ltd
    Nagoya-shi, Aichi 467-8525 (JP)
  • Tanaka, Katsuhiko, NGK Spark Plug Co., Ltd
    Nagoya-shi, Aichi 467-8525 (JP)
  • Nagasawa, Masakazu, NGK Spark Plug Co., Ltd
    Nagoya-shi, Aichi 467-8525 (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)

   


(54) Heater


(57) A heater has a cylindrical metallic shell, a heater body partly disposed in a front end portion of the metallic shell, an electrode disposed in a rear portion of the metallic shell and electrically connected to the heater body, and a terminal adapted to be capped with an electric connector. The terminal includes a terminal body for power supply to the heater body through the electrode and an engaging portion formed on an outer circumferential surface of the terminal body so as to be engageable with the electric connector. The electrode and the terminal body are formed integrally with each other. Such a heater can maintain good electrical conduction from the terminal to the heater body with its simple structure throughout an extended period of time.







Search report